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Development of high-strength Al alloy with high thermal stability by multi-directionally forging

Research Project

Project/Area Number 17K17810
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Material processing/Microstructural control engineering
Research InstitutionToyohashi University of Technology

Principal Investigator

Aoba Tomoya  豊橋技術科学大学, 工学(系)研究科(研究院), 助教 (50757143)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsアルミニウム合金 / 組織制御 / 多軸鍛造法 / 結晶粒微細化 / 析出 / 巨大ひずみ加工 / 超微細粒 / 加工熱処理 / 高熱的安定性 / 高強度 / 構造・機能材料
Outline of Final Research Achievements

This study investigated the grain refinement and thermal stability of aluminum alloy during multi-directional forging. The grain size of multi-directionally forged (MDFed) Al-Mg-Sc alloy up to cumulative strains of Σσ=6 was smaller than that of MDFed Al-Mg alloy due to dense shear banding. MDFed Al-Mg alloy was softened immediately by annealing for several hours, but the Al-Mg-Sc alloy maintained high hardness even after three months of annealing.

Academic Significance and Societal Importance of the Research Achievements

本研究は、時効硬化性のあるアルミニウム合金に対して巨大ひずみ加工法の一種である多軸鍛造法を施した後、焼鈍処理を行った。巨大ひずみ加工後のアルミニウム合金の析出挙動に関しては未解明な部分が多く、これに関して知見を得ることで、実用的な高強度合金設計に関する指針を作成するための一助となる。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (51 results)

All 2019 2018 2017

All Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Open Access: 1 results) Presentation (38 results) (of which Int'l Joint Research: 16 results)

  • [Journal Article] ADC12合金ダイカストの熱処理におけるX線残留応力変動と微細組織不均一性の関係2019

    • Author(s)
      古田 将吾, 小林 正和, 上坂 直人, 青山 俊三, 青葉 知弥, 三浦 博己
    • Journal Title

      鋳造工学

      Volume: 91 Pages: 335-342

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructure and mechanical properties in multi-directionally forged 7075 and 7N01 aluminum alloy2018

    • Author(s)
      Aoba Tomoya、Ueno Sotaro、Kobayashi Masakazu、Miura Hiromi
    • Journal Title

      Journal of Japan Institute of Light Metals

      Volume: 68 Issue: 7 Pages: 339-345

    • DOI

      10.2464/jilm.68.339

    • NAID

      130007475254

    • ISSN
      0451-5994, 1880-8018
    • Year and Date
      2018-07-30
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructure and mechanical properties of plates warm extruded AZ80Mg alloy fabricated by multi-directional forging in advance2018

    • Author(s)
      Miura Hiromi、Minami Keiichiro、Aoba Tomoya、Kobayashi Masakazu
    • Journal Title

      Procedia Manufacturing

      Volume: 15 Pages: 1533-1540

    • DOI

      10.1016/j.promfg.2018.07.324

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of internal inhomogeneous plastic strain during cold rolling of Al-Mg alloys2018

    • Author(s)
      Kobayashi Masakazu、Aoba Tomoya、Miura Hiromi
    • Journal Title

      Procedia Manufacturing

      Volume: 15 Pages: 161-167

    • DOI

      10.1016/j.promfg.2018.07.190

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of Morphology Changes of Fine Eutectic Si Phase in Al-10%Si Cast Alloy during Heat Treatment by Synchrotron Radiation Nanotomography2018

    • Author(s)
      Furuta Shougo、Kobayashi Masakazu、Uesugi Kentaro、Takeuchi Akihisa、Aoba Tomoya、Miura Hiromi
    • Journal Title

      Materials

      Volume: 11 Issue: 8 Pages: 1308-1308

    • DOI

      10.3390/ma11081308

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An approach for room-temperature multi-directional forging of pure titanium for strengthening2018

    • Author(s)
      H.Miura; M.Kobayashi; T.Aoba; T.Benjanarasuth,
    • Journal Title

      Mater. Sci. Eng. A

      Volume: 731 Pages: 603-608

    • DOI

      10.1016/j.msea.2018.06.060

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microstructural Evolution and Enhanced Mechanical Properties by Multi-Directional Forging and Aging of 6000 Series Aluminum Alloy2018

    • Author(s)
      Aoba Tomoya、Kobayashi Masakazu、Miura Hiromi
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 59 Issue: 3 Pages: 373-379

    • DOI

      10.2320/matertrans.L-M2017856

    • NAID

      130006400696

    • ISSN
      1345-9678, 1347-5320
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructural Evolution and Enhanced Mechanical Properties by Multi-Directional Forging and Aging of 6000 Series Aluminum Alloy2018

    • Author(s)
      Aoba Tomoya、Kobayashi Masakazu、Miura Hiromi
    • Journal Title

      Materials Transactions

      Volume: 59 Pages: 373-379

    • NAID

      130006400696

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigation of three-dimensional morphology changes of the eutectic Si particles affected by trace P and Sr in Al-7%Si cast alloys by means of synchrotron nano-tomography2017

    • Author(s)
      Furuta S.、Kobayashi M.、Uesugi K.、Takeuchi A.、Aoba T.、Miura H.
    • Journal Title

      Materials Characterization

      Volume: 130 Pages: 237-242

    • DOI

      10.1016/j.matchar.2017.06.009

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Impact rupture behavior of AZ80 magnesium alloys fabricated by multi-directional forging under decreasing temperature conditions2017

    • Author(s)
      Tani Hirotaka、Aoba Tomoya、Kobayashi Masakazu、Takahashi Akihiro、Miura Hiromi
    • Journal Title

      Journal of Japan Institute of Light Metals

      Volume: 67 Issue: 8 Pages: 355-360

    • DOI

      10.2464/jilm.67.355

    • NAID

      130006107933

    • ISSN
      0451-5994, 1880-8018
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microstructural evolution and enhancement of mechanical properties by multi-directional forging and aging of 6000 series aluminum alloy2017

    • Author(s)
      Aoba Tomoya、Kobayashi Masakazu、Miura Hiromi
    • Journal Title

      Journal of Japan Institute of Light Metals

      Volume: 67 Issue: 7 Pages: 277-283

    • DOI

      10.2464/jilm.67.277

    • NAID

      130006026380

    • ISSN
      0451-5994, 1880-8018
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of aging on mechanical properties and microstructure of multi-directionally forged 7075 aluminum alloy2017

    • Author(s)
      Aoba Tomoya、Kobayashi Masakazu、Miura Hiromi
    • Journal Title

      Materials Science and Engineering: A

      Volume: 700 Pages: 220-225

    • DOI

      10.1016/j.msea.2017.06.017

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Enhanced magnetic irreversibility characteristics by expansion of blocking block for Sr2Ca2Cu3O8-δ high-T c superconductor2017

    • Author(s)
      Tomoya Aoba, Tsuneo Suzuki, Tadachika Nakayama, Hisayuki Suematsu, Koichi Niihara, Maarit Karppinen
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56

    • NAID

      210000148147

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Fabrication of Ultrafine-grained and High-strength Mg Alloy Tube by MDF and Warm Extrusion2019

    • Author(s)
      H. Miura*、 K. Minami、 T. Aoba、and M.Kobayashi
    • Organizer
      BIT's 5th Annual World Congress of Smart Materials-2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ADC12ダイキャスト板材におけるミクロ組織不均一性2018

    • Author(s)
      古田将吾、小林正和、青山俊三、上坂直人、 谷口晧平、青葉知弥、三浦博己
    • Organizer
      鋳造工学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 多軸鍛造Al-Mg合金の組織と機械的性質2018

    • Author(s)
      青葉知弥、小林正和、三浦博己
    • Organizer
      軽金属学会
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
  • [Presentation] 多軸鍛造加工を施したAl-Mg-Sc系合金の変形挙動のひずみ速度・温度依存性2018

    • Author(s)
      澤秀太郎、渡邊千尋、門前亮一、青葉知弥、三浦博己
    • Organizer
      軽金属学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Al-5Mg-2Si鋳造合金のミクロ組織と力学特性2018

    • Author(s)
      谷口皓平、小林正和、古田将吾、青葉知弥、三浦博己
    • Organizer
      鋳造工学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Al-Mg合金の圧延集合組織形成における局所塑性ひずみの役割2018

    • Author(s)
      小林正和、青葉知弥、三浦博己
    • Organizer
      金属・無機・有機材料の結晶方位解析と応用技術研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超微細粒AZ31マグネシウム合金の静的再結晶における微視組織および機械的性質の変化2018

    • Author(s)
      池田光志、樫原恵蔵、青葉知弥、小林正和、三浦博己
    • Organizer
      軽金属学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] SrおよびP添加により共晶Si粒子を変化させたAl-7%Si鋳造合金の力学特性調査2018

    • Author(s)
      小林正和、谷口皓平、古田将吾、青葉知弥、三浦博己
    • Organizer
      軽金属学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 多軸鍛造を施したAl-Mg-Sc合金の時効特性と微細組織2018

    • Author(s)
      青葉知弥、小林正和、三浦博己、渡邊千尋
    • Organizer
      軽金属学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cu-Ni-Si合金の曲げ加工性に及ぼす表面ブラッシングの影響2018

    • Author(s)
      金山弥旦、傍島亮平、青葉知弥、小林正和、三浦博己
    • Organizer
      日本銅学会第58回講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 放射光X線トモグラフィーによる銅合金の延性ボイド観察2018

    • Author(s)
      小林正和、青葉知弥、三浦博己
    • Organizer
      日本銅学会第58回講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 低炭素鋼の熱間変形及び動的再結晶挙動に及ぼすAl添加量の影響2018

    • Author(s)
      大岩 真人、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      第28回材料フォーラム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cu-Ni-Si合金の曲げ加工性に及ぼす表面ブラッシングの影響2018

    • Author(s)
      金山 弥旦、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      第28回材料フォーラム
    • Related Report
      2018 Annual Research Report
  • [Presentation] IF鋼冷間圧延板の静的再結晶挙動に及ぼす初期粒径と焼鈍プロセスの影響2018

    • Author(s)
      荒井 海貴、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      第28回材料フォーラム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 温間多軸鍛造AZ80Mg合金の組織と機械的性質2018

    • Author(s)
      余田 悠輔、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      軽金属学会東海支部
    • Related Report
      2018 Annual Research Report
  • [Presentation] 降温多軸鍛造AZ系Mg合金の衝撃破壊挙動に関する研究2018

    • Author(s)
      鈴木 大介、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      軽金属学会東海支部
    • Related Report
      2018 Annual Research Report
  • [Presentation] Al-5%Mg-2%Si鋳造合金の組織と力学特性調査2018

    • Author(s)
      谷口 皓平、古田 将吾、青葉 知弥、小林 正和、三浦 博己
    • Organizer
      軽金属学会東海支部
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of local inhomogeneous strain and microstructure during cold rolling in Al-Mg alloys by using 3D marker tracking method2018

    • Author(s)
      M. Kobayashi、 M. Nakayama、 T. Aoba and H. Miura
    • Organizer
      Thermec2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure and mechanical properties of plates and tubes warm extruded AZ80Mg alloy fabricated by MDF in advance2018

    • Author(s)
      H. Miura、 K. Minami、 T. Aoba、 M. Kobayashi
    • Organizer
      Metal Forming 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of morphology changes in eutectic Si particles by heat treatment on mechanical property in Al-10%Si cast alloy2018

    • Author(s)
      S. Furuta、 M. Kobayashi、 T. Aoba、 H. Miura
    • Organizer
      ICAA2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructural evolution and change in mechanical properties of multi-directionally forged Al alloy2018

    • Author(s)
      T. Aoba、 M. Kobayashi、 H. Miura
    • Organizer
      ICAA2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of Mechanical properties in AL-7%Si cast alloys with changing the eutectic Si particles by trace P and Sr2018

    • Author(s)
      M. Kobayashi、 S. Furuta、 K. Taniguchi、 T. Aoba and H. Miura
    • Organizer
      ICAA2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of internal inhomogeneous plastic strain during cold rolling in Al-Mg alloys2018

    • Author(s)
      M. Kobayashi、 T. Aoba and H. Miura
    • Organizer
      Metal Forming 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of three-dimensional inhomogeneous plastic strain during cold rolling in Al-Mg alloys2018

    • Author(s)
      M. Kobayashi、 T. Aoba and H. Miura
    • Organizer
      4th International Congress on 3D Materials Science (3DMS)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water Molecule Absorption in Sr2Ca2Cu3Oy Superconductors and Enhancement of Critical Current Density Properties2018

    • Author(s)
      H. Suematsu、 T. Nagumo、 A. Sklyarova、 T. Aoba、 G. Thorogood、 A. Fujimoto、 T. M. D. Do、 T. Nakayama and K. Niihara
    • Organizer
      13th INTERNATIONAL CONFERENCE ON THE PHYSICAL PROPERTIES AND APPLICATION ON ADVANCED MATERIALS
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure and Mechanical Properties of AZ80Mg Plates Fabricated by Combined Multi-Directional Forging and Warm Extrusion2018

    • Author(s)
      H. Miura、 K. Minami、 T. Aoba、 M. Kobayashi、 J. J. Jonas
    • Organizer
      GEMS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synchrotron Radiation Micro and Nano Tomography for Materials Science2018

    • Author(s)
      M. Kobayashi、 T. Aoba and H. Miura
    • Organizer
      GEMS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructural evolution and change in mechanical properties of multi-directionally forged Al alloy2018

    • Author(s)
      T. Aoba, M. Kobayashi, H. Miura
    • Organizer
      ICAA2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of morphology changes in eutectic Si particles by heat treatment on mechanical property in Al-10%Si cast alloy2018

    • Author(s)
      S. Furuta, M. Kobayashi, T. Aoba, H. Miura
    • Organizer
      ICAA2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Investigation of inhomogeneous deformation and microstructure during cold rolling in Al-Mg alloys by using 3D marker tracking method2017

    • Author(s)
      M. Kobayashi, M. Nakayama, T. Aoba and H. Miura
    • Organizer
      ICOTOM18
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Microstructural evolution and change in mechanical properties of 6063Al alloy by multi-directional forging and subsequent aging2017

    • Author(s)
      T. Aoba, M. Kobayashi, H. Miura
    • Organizer
      International Research Center on Giant Straining for Advanced Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Internal local strain distribution during cold rolling in Al-Mg alloys2017

    • Author(s)
      M. Kobayashi, M. Nakayama, T. Aoba and H. Miura
    • Organizer
      International workshop on fundamental research for science and technology 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mg量の異なるAl-Mg合金の冷間圧延における内部局所塑性ひずみ分布2017

    • Author(s)
      小林正和、青葉知弥、三浦博己
    • Organizer
      軽金属学会 アルミニウムの再結晶集合組織形成モデル化研究部会
    • Related Report
      2017 Research-status Report
  • [Presentation] 冷間多軸鍛造を施したAl-Zn-Mg系合金の強度と環境疲労特性2017

    • Author(s)
      小林 正和、上野 宗太郎、青葉 知弥、三浦 博己
    • Organizer
      金属学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超微細粒Al-Mg-Sc合金の変形挙動のひずみ速度・温度依存性2017

    • Author(s)
      渡邊千尋,門前亮一,青葉知弥,三浦博己
    • Organizer
      金属学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 多軸鍛造を施したAl-Mg-Zn合金の機械的性質2017

    • Author(s)
      青葉知弥、小林正和、三浦博己
    • Organizer
      軽金属学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 多軸鍛造加工によるAl-Mg-Si合金の機械的特性の変化2017

    • Author(s)
      青葉 知弥、小林 正和、三浦 博己
    • Organizer
      軽金属学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Al-Mg合金の冷間圧延における局所塑性ひずみ分布に対するMg量の影響2017

    • Author(s)
      中山 将徳、小林 正和、青葉 知弥、三浦 博己
    • Organizer
      軽金属学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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